Controlling and sensory system



Jari. 30, 1940. S, E, ADAIR 2,188,383

CONTROLLING AND SENSORY SYSTEM Filed NOV. 20, 1957 INVENTQR. /02 AML/Ez. EADA/R l ATTORNEYS.

Patented Jan. 30, 1940 UNITED STATES CoN'rRoLLiNG `AND sENsonY SYSTEM Samuel E. Adair, Chicago, Ill., assignor, by mesne assignments,

to Bendix Radio Corporation,

Baltimore, Md., a corporation of Delaware Application November 20, 1937, Serial No. 175,644

s claims. (ol. 17am-100.4) 'se This invention relates to controlling and sensory s ystems and more particularly to systems in which a record for the reproduction of a sen- Vsory effect carries thereon an operating component to operate a device or series of devices.

One object of the invention is to provide a controlling and sensory system in which the sensory eifect and the devices to be controlled are `correlated to provide automatically for a predetermined time relationship in their operation with very little possibility of confusion.

Another object of the invention is to provide a controlling and sensory system in which devices to be controlled are normally held inactive by a controlling component and are actuated by interruption of such component. Preferably the controlling component is reproduced from a record which may also carry a sensory component to give any desired sensory eect.

Another object of the invention is to provide a novel controlling method particularly adapted for use with a sensory system.

Other objects, advantages and novel features of the invention will become apparent from the following description of the illustrative embodiment shown in the accompanying drawing, in which:

Figure 1 is a diagrammatic representation of a controlling and sensory system embodying the invention;

Figure 2 is an enlarged diagrammatic repre-` sentation of the operating frequency component of the record;

Figure 3 is an enlarged'diagrammatic representation of the sensory component;

Figure 4 'is an enlarged diagrammatic representation of the resultant sensory track; and

Fig. 5 is a diagrammatic representation of one method of producing the record.

'I'he invention is illustrated in Fig. 1 as embodying a disc record I0 having recorded thereon some sound or other sensory effect which it is desired to reproduce and an operating component I2 superimposed thereon.

The system is generally similar to that described and claimed in the co-pending applications of John E. Jenkins and Samuel E. Adair, Ser. No. 690,656 filed September 23, 1933, and Ser. No. 200,652, filed April 7, 1938.

An electrical pickup I6 may be employed to convert the mechanical vibrations on the record to electrical oscillations which may be amplified by an ampliiier I8 and reproduced through a loudspeaker 20. A lter 22 may, if desired, be

employed in this circuit to lter out the operating component so that it will not be reproduced by the loudspeaker.

A device operating circuit, in parallel with the above circuit may consist of a filter 24 connected to the pickup I6. The lter 24 is so constructed ture projector 32 more completely described bel low, and described and claimed in the previously 15"' mentioned copending applications.

As shown in Fig. 4 the record l0 consists of a single recorded track incorporating both a normal sound recording I4 (Fig. 3) which shall be called the sound track, and a device-operating recording I2 (Fig. 2), which shall be called the operating component; that is to say the normall sound track I4 is combined with the operating component I2, so that record I0 consists mainly of recordedv vibrations I3 (Fig. 4) comprising 25- the resultant of the sound track I 4 and the operating component I2.

According'to the present invention, the operating component consists of a low frequency sound oscillation present at every portion of the sound 305v track except at that portion in which it is desired to operate or start to operate a device such asthe continuous lm projector 32. i

-It can readily be seen that there is very little possibility of the normal sound track having an Sli"v oscillation of exactly the same frequency and in exactly the same phase relationship as that of the operating component at the portion of the sound track in which the operating component is absent. This insures that the device to be 40 operated such as the projector 32, will be operated only at the proper time.

The record I0, may be prepared in any suitable manner. One desirable method being illustrated in Fig. 5 and including a suitable recorder 45 |00, a device such as microphone |02 for delivering to the recorder 4the normal sound vibrations such as the speech, music or other sound it is desired to reproduce, and a device for delivering to the recorder the device operating frequency. 50 The devicefor delivering the device operating frequency is shown as an oscillator |04 and leads |06 having a normally closed switch |08. The leads |06 connect the oscillator to the recorder so that the recorder can deliver to the record 55.

This relay may, if desired, be of the 10%:

the device-operating component as long as the switch IUB remains closed. This switch may be opened at the time during the recording of the normal sound track at which it is desired to operate the device 32.

It is to be understood that the record I0 may be of any suitable type known in the art, that is, it may be a groove formed in a cylinder or disc, as shown, a photographic recordona rlm,

or a magnetic record on Wire.

'I'he device operating circuit illustrated in Figure l comprises a filter 24, connected to the The lter 24 isso designed as,to

pickup I6. lpermit only those oscillations to pass which correspond in frequency to that of the device operating component.

The lter 24 may be connected to an amplier 28, which in turn delivers the amplied operating current to the relay 30. Whether the amplifier 28 is necessary or not depends upon the sensitivity of the relay.

` The lter 24 need not be employed if the relay is `ofthe tuned type.

Therelay 30 is shown normally biased by 25.f springSl in switch closed position, but the operating componentA being present at all times to energize relay 30 except when it is desired to close the relay switch, the switch is held open until that particular time at which the operattingcomponent is absent on the record.

What is claimedis:

1. In acontrolling and sensory system, a record having recorded thereon a sensory component, a control component modulating said sen- .rsory component throughout the greater part of said record, an unmodulated portion of said sensory component located at a predetermined point along said recording, means for converting said recorded components into electrical impulses, and means responsive to said impulses for instituting a control function upon the occurrence of said unmodulated portion of said sensory component.

2.In a `controlling and sensory system, a rece ;.ord `having recorded thereon a sensory component, a control component modulating said sensory component throughout thegreater part of said record, an unmodulated portion of said sensory component located at a predetermined 5l);L point along said recording, means for converting l 4. In a controlling and sensory system, a rec-fl ord having. recorded thereon a sensory component, a control component modulating said sensory component throughout the greater part of said record, anunmodulated portion of said sensory component' located at a predetermined point `along said recording, means for converting said recorded components into electrical impulses, means4 for selecting impulses corresponding to sadcontrol component from said electrical impulses, and; acontrol` relay actuated in response to said selected impulses and for the duration thereof.

5. In `a controlling and, sensory system, a device to'be operated by said system, a record havingrecorded.thereon a sensory component, a controlcemponent vmodulating said sensory component` throughout the greater part of said record, `an unmodulated portion of said sensory component located at a .predetermined point along saidrecording, means for converting said recorded components into electrical impulses, and means responsive to said impulses for operating said device upon the occurrence of said unmodulated portion of said sensory component.

6. In a controlling ,and sensory system, a deviceto be operated Yby said system, a record having recorded thereon a sensory component, a control component modulating said sensory component vthroughout the greater part of said record, an unmodulated portion of said sensory component located at a predetermined point along said recording, means for converting said recorded components into electrical impulses, means for reproducing said sensory component being connected to said conversion means, means for selecting impulses corresponding tosaid control component. from said electrical impulses, and means responsive to said selected impulses for maintaining` said device inoperative, said means permitting V,operation of saiddevice upon the occurrence of-said unmodulated portion of said ,sensory component.

SAB/.FUEL E.l ADAIR. 

